Luckily, his new ring activated as intended. He felt the ring connect to his mana automatically and begin siphoning some into itself. Simultaneously the wound on the tip of his finger began to close at a visible pace. His Ring of Regeneration was working wonderfully. Similar to his Ring of Shielding, the Ring of Regeneration worked faster with larger reserves of mana but could only handle so much so the speed was limited. Unlike the Ring of Shielding, the Ring of Regeneration couldn't be burnt out since he couldn't force more mana into it, it just took what it needed. It wasn't anywhere near Wolverine levels of regeneration, but he could recover from anything less than a major wound in just a few minutes. Additionally, it would keep his body in perfect health by repairing any damage repeated actions, like swinging a hammer, would do to his joints. Had to plan for that late life arthritis!
Seriously though, between the shield and the regeneration, he should be very safe from mundane threats and low level supernatural threats. Combined with the trinket hiding his mana and he should be easily ignored as nothing important. It was the absolute best he could currently do to ensure his safety. Once he could make weapons capable of vaporizing continents, he wouldn't need to be so careful. Until then...
There was another reason he made the Ring of Regeneration. He rolled his chair over to another desk, this one covered in writing supplies, most notably calligraphy supplies. Not just simple starter supplies one might find in many stores, but rather the high quality expensive ones that you had to either find a specialty store for, or special order. Junichiro had actually been surprised at how easy it was to find high quality parchment paper at a reasonable price. It was the brushes and ink block that had monstrous price tags.
Just a single medium-high quality ink stick had cost him fifty thousand yen! The most expensive ones he'd seen were easily double that price if not more! Then he had to spend just as much for a similar quality brush! JUST ONE BRUSH! Just those two innocuous items had cost him over one hundred thousand yen! He'd been very tempted to just try and steal them but it was impossible. Such expensive items were very well protected. Besides, he might be willing to steal in necessity but he didn't consider himself an actual thief. He only took what he needed, not what he wanted.
…
Most of the time. He wasn't perfect, alright?
He pulled out the ink stone, ink stick, and a small container of water. To make traditional calligraphy ink, he needed to pour just a small amount of water on the top portion of the stone, above the well, and grind the stick into the water. He'd need to do this a bunch of times until he had not only enough ink but also the right consistency. The more of the ink stick he grinds into the water, the thicker the ink becomes. It had to be within a certain range to suit his purposes. So, that's what he did... For the next forty minutes.
Once he had enough ink, he set the ink stone aside and retrieved the knife he'd cut himself with previously. In order to make spell scrolls one needed magical ink. There were many ways to get magical ink if one had access to the right materials or stores. Junichiro didn't. The only magical thing he had available for materials was himself. With that being the case, he channeled mana from his core to the tip of his finger, in order for the blood to be as magically charged as possible, before slicing it once more and allowing his blood to drip into the ink well.
It just took a few drops carefully mixed into the thick ink and he had himself magical ink. His Ring of Regeneration ate some more of his mana to seal his finger once more. He'd forced himself to hold off on making magical scrolls until he wouldn't have to suffer through days of healing every time he wanted to make some.
With his prep done, Junichiro settled a sheet of parchment paper in front of himself and picked up calligraphy brush. After dipping it into the ink, he began to draw on the piece of parchment while channeling mana through the brush. Spell scrolls were interesting little things. What you drew on them was largely irrelevant. This was a necessity as not every Artificer would be an expert as drawing art. What was important was the intentions of the caster, the amount of mana invested, and the amount of ink used. All Artificers could feel when a spell scroll was completed just as they could feel their enchantments take hold on items.